Grease-gun.



H. Gr. LA SOR.

GREASE GUN.

APPLIGATION FILED 111111.11, 1914.

Patented June 30, 914.

Yil@

ernten GREASE-GUN.

,reiner-fi,

Application lezl Lfereh H, 19M.

\ Specifica on of Letters Patent.

Pettented June 301., iid.

Serial No. 823,922.

To all iti/2.0m may concern Be it known that i, fili-menne? G. LA, Son., 'u citizen ot the AUnited litmef-i7 residing; et New Haven, in the county of New Huren and State of Connecticute have invented s new and useful improvement in Grease- Guns; and l do hereby declare the olloiv ing, when taken in connection -with the eccoinpunying drawings 'and the characters of reference marked thereon, to be e fuli clear, and exact description et the seine sind whichsoid drawings constitute part or this application, and represent, in-

iigure l e view in eide elevation et a grease-gun constructed in accordance with my invention. Fig. 2 a View thereot in ver-` tical. longitudinal section on the ,line @-7) of Fig. 1. Fig. 3 e 'View' in trensveiise section on the line c-CZ of Fig. i, sheri/ing` the charging-openings closed. lmig. correspondingview showing the charging-openings opened.

liiy invention relates to E in that class et hibrieetors ot t e syringetype commonly known rreese-tJ 'es which are designed for the use ot e heeyy non-liquid or semi-liquid oils, the object 'being to produce simple end gun constructed ivi-th perticrdor to facility of charging' ncurrying out iny invention herein shown, i employ .fi tnbuhir nietei bod] 2 provided toward its forward end with. e long longitudinally arranged chargingopening 3 and having its rear end threaded for the nppiicetion to it ot heed or Cap and its forward end threaded for the epplication to it ot s heed or oep formed with e nozzle 5. The seid 4C hes e eentrni beoriiig-opening,f Z for piston-rod 5 furnished :it its outer end with o, bowed handie and proridedsat its inner end with s piston i@ having` tivo yielding` peeking'- ring's il ierger in diameter t1 r een the piston itself.4 rihe seid body is ineiosed end to end in o tubuier nietsi or rotatsble closure 12 adapted in len@ .i to obut et its ends against the inner toces ot the respective knurled beads 13? le, oit the caps t and 5. The seid tubular gate is formed toward its forward end With/a eiisrging-opening l5 Correspondingin size to 'the chargingopening` 3 ziitoreseirh and upon its inner end with :i gripping-band 'je produced, by preference, by cross-.hatchingthe nietoi.

Now Wish to ceti attention to the tact that the tubular body 2 is `mede of`light stock, whereby the charging-opening 3 will be corresliiondingly shallow, and in fact no deeper than the thickness of the metal of the body Q, and therefore capable oit being reedily iilled by the expansion of the peckingrings 11 which, as they are brought into`A registration with the seid opening' 3, Will the device covered by the length of the rherging-openings.

iniising my device, the body 2 and gate 12, eitheror both, are turned With respect to the other so as to bring the chargingopeningg 15 in the tubular gate l2 into registrzitien 'with the charging-opening 3 in the tubular body Then zitter the piston has been retracted, e given quantity of grease or oil is charged into the gun, after Which the body and grate, either or both, are r0- teted so os 'to close the charging-opening 3. New when the handle 9 is operated to force the piston 10 against the grease, siiifcient pressure iviii he developed to expend the :torwerd g-ringr il so that it will fill the charging-opening 3 in the body 2, end ineinteinrthe pressure in front of the pistonl for the expulsion ofthe heavy grease or oil through the nozzle f3. @n the other hand, should it be desired to charge the gun with 1iighter oils in the ordinary Way by placing the nozzle of the gun in the oii after pushing;1 the piston into the nozzle-end ot the gun, the suction will be maintained in full eitect es thepiston is retracted over the Charging-opening because the pressure of the eir beingexpellcd, :iff-einst the rearward peclring-ringl, wili cause o siiliicient eX- pension oit the seme to `dll the chargingopeninp; Q.,

cleiinz- En e grease-gun, the combination with a tubular body n'mde oi o thin stock and heving o lateral ehm-ging-opening` of forward and rear cops respcetivelyfzipplied to the opposite ends ot the smid body, :i tubular gate inode ot relatively heavy metal and inter-- posed between the seid caps and formed- With e charging-cf.eningi registering With the cherging-openr of 4the smdbody, an

expansble piston located Within the said specification n the presence of two suloscrb body and adapted to fill the charging-opening. Witnesses. in@ thereof 'when the piston is registered Wirth any part of the said opening, a piston H' G' SOR' 5 rod hyng bearing in the said rear cap, and Witnesses:

a nozzle-1119011 the said forward cap. CHARLOTTE A. LA SOR,

In testigwny whereof, 1 have signed this M. P. NICHOLS. 

